Marine Trophic Index in LME: Guinea Current

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Year	Mean trophic level	Mean max. length (cm)	FiB Index	Expansion factor
1950	3.2	71.4	0	1
1951	3.21	71.6	0.05	1.05
1952	3.2	68.4	0.16	1.17
1953	3.19	66.4	0.24	1.27
1954	3.19	66.6	0.37	1.45
1955	3.19	65.9	0.43	1.54
1956	3.17	66.2	0.5	1.65
1957	3.2	70.4	0.71	2.03
1958	3.21	71.9	0.76	2.14
1959	3.27	79.3	0.97	2.64
1960	3.32	81.9	1.21	3.35
1961	3.33	79.9	1.28	3.6
1962	3.31	78.5	1.46	4.31
1963	3.34	76.2	1.6	4.95
1964	3.31	86.3	1.72	5.58
1965	3.41	83.2	1.97	7.17
1966	3.39	82.5	1.92	6.82
1967	3.35	78.1	2.07	7.92
1968	3.42	82.7	2.32	10.18
1969	3.38	79.2	2.38	10.8
1970	3.35	74.1	1.99	7.32
1971	3.32	66.1	2.21	9.12
1972	3.28	64	2.34	10.38
1973	3.39	76.7	2.37	10.7
1974	3.44	78.6	2.49	12.06
1975	3.4	81	2.4	11.02
1976	3.4	81.7	2.35	10.49
1977	3.4	77.5	2.58	13.2
1978	3.33	67.3	2.54	12.68
1979	3.35	71.1	2.5	12.18
1980	3.39	73.5	2.71	15.03
1981	3.31	66.2	2.48	11.94
1982	3.33	66.7	2.5	12.18
1983	3.36	68.9	2.56	12.94
1984	3.25	60.1	2.12	8.33
1985	3.24	58.3	2.22	9.21
1986	3.26	58.8	2.33	10.28
1987	3.22	52.3	2.3	9.97
1988	3.23	56.2	2.24	9.39
1989	3.24	55.1	2.3	9.97
1990	3.26	57.9	2.36	10.59
1991	3.22	54.9	2.36	10.59
1992	3.22	56.3	2.43	11.36
1993	3.23	55.7	2.41	11.13
1994	3.22	57.9	2.33	10.28
1995	3.19	53.5	2.34	10.38
1996	3.17	49.2	2.46	11.7
1997	3.15	52.6	2.42	11.25
1998	3.17	56.2	2.44	11.47
1999	3.17	62.3	2.26	9.58
2000	3.17	55.8	2.33	10.28
2001	3.19	58.7	2.31	10.07
2002	3.18	58.7	2.26	9.58
2003	3.2	56.8	2.43	11.36
2004	3.2	56.5	2.42	11.25
2005	3.2	60.1	2.38	10.8
2006	3.19	58.3	2.39	10.91

TL	SLMax(cm)	Common Name	Scientific Name
4.5	498	Mako sharks	Isurus
4.5	400	Thresher sharks	Alopias
4.5	219	Bigeye tuna	Thunnus obesus
4.5	66	Senegalese hake	Merluccius senegalensis
4.5	66	Benguela hake	Merluccius polli
4.5	98	Bluefish	Pomatomus saltatrix
4.5	164	Leerfish	Lichia amia
4.5	284	Smooth hammerhead	Sphyrna zygaena
4.5	79	John dory	Zeus faber
4.5	50	Shortspine African angler	Lophius vaillanti
4.48999977111816	449	Swordfish	Xiphias gladius
4.48000001907349	246	Atlantic white marlin	Tetrapturus albidus
4.48000001907349	100	Black-bellied angler	Lophius budegassa
4.47714281082153	367	Billfishes	Istiophoridae
4.46000003814697	112	Monkfishes	Lophius
4.46000003814697	82	Cape monk	Lophius vomerinus
4.44999980926514	192	Largehead hairtail	Trichiurus lepturus
4.44999980926514	115	Shallow-water Cape hake	Merluccius capensis
4.42999982833862	376	Atlantic bluefin tuna	Thunnus thynnus
4.40333318710327	179	Barracudas	Sphyraena
4.40000009536743	258	Atlantic sailfish	Istiophorus albicans
4.40000009536743	227	Wahoo	Acanthocybium solandri
4.40000009536743	100	Little tunny	Euthynnus alletteratus
4.38500022888184	164	Amberjacks	Seriola
4.38000011444092	122	Needlefishes	Belonidae
4.38000011444092	346	Atlantic blue marlin	Makaira nigricans
4.36999988555908	172	Common dolphinfish	Coryphaena hippurus
4.34999990463257	108	Skipjack tuna	Katsuwonus pelamis
4.34749984741211	205	Seerfishes	Scomberomorus
4.34000015258789	54	Frigate tuna	Auxis thazard thazard
4.34000015258789	231	Yellowfin tuna	Thunnus albacares
4.30999994277954	136	Albacore	Thunnus alalunga
4.30999994277954	164	Cobia	Rachycentron canadum
4.28000020980835	248	Longbill spearfish	Tetrapturus pfluegeri
4.28000020980835	392	Shortfin mako	Isurus oxyrinchus
4.2662501335144	125	Hakes	Merluccius
4.2622218132019	150	Mackerels tunas and bonitos	Scombridae
4.26000022888184	82	West African Spanish mackerel	Scomberomorus tritor
4.24176502227783	207	Requiem sharks	Carcharhinidae
4.23999977111816	519	Sawfishes	Pristidae
4.23999977111816	289	Blue shark	Prionace glauca
4.2350001335144	60	Frigate tuna	Auxis
4.23199987411499	90	Dogfish sharks	Squalidae
4.21999979019165	200	Opah	Lampris guttatus
4.21333312988281	246	Snake mackerels	Gempylidae
4.21000003814697	400	Bigeye thresher	Alopias superciliosus
4.21000003814697	623	Thintail thresher	Alopias vulpinus
4.19999980926514	376	Tunas bonitos and billfishes	Scombroids
4.19999980926514	90	Atlantic bonito	Sarda sarda
4.19999980926514	238	Silky shark	Carcharhinus falciformis
4.18599987030029	421	Hammerhead and bonnethead and scoophead shark	Sphyrnidae
4.15000009536743	150	Cutlassfishes	Trichiuridae
4.15000009536743	144	Kitefin shark	Dalatias licha
4.13424253463745	32	Squids	Teuthida
4.07999992370605	31	African moonfish	Selene dorsalis
4.07999992370605	82	Atlantic pomfret	Brama brama
4.07999992370605	294	Scalloped hammerhead	Sphyrna lewini
4.07999992370605	89	West African ladyfish	Elops lacerta
4.07399988174438	100	Moray eels	Muraenidae
4.05999994277954	37	Bobo croaker	Pseudotolithus elongatus
4.05230808258057	164	Jacks and pompanos	Carangidae
4.05000019073486	200	Meagre	Argyrosomus regius
4.02400016784668	98	Snappers	Lutjanus
4.01999998092651	98	White grouper	Epinephelus aeneus
4.01749992370605	98	Snappers	Lutjanidae
4.01000022888184	164	Giant African threadfin	Polydactylus quadrifilis
4	300	Sharks rays and skates etc	Sharks or rays and chimaeras
4	150	Various sharks	Sharks rays and chimaeras
4	15	Bonnetmouths	Inermiidae
3.99499988555908	90	Gunnels and forkbeards	Phycis
3.99000000953674	180	Conger eels	Muraenesox
3.99000000953674	25	Common squids	Loligo
3.98279094696045	190	Sea basses or groupers and fairy basslets	Serranidae
3.98000001907349	57	Orange roughy	Hoplostethus atlanticus
3.97000002861023	60	Alfonsinos	Beryx
3.96499991416931	100	Seabreams (Dentex spp)	Dentex
3.94000005722046	100	European/spotted seabass	Dicentrarchus
3.94000005722046	57	Spotted seabass	Dicentrarchus punctatus
3.94000005722046	140	Dungat grouper	Epinephelus goreensis
3.91666698455811	43	Scorpionfishes or rockfishes	Scorpaenidae
3.91417288780212	80	Cods	Gadiformes
3.91000008583069	50	Blue butterfish	Stromateus fiatola
3.89000010490417	189	Law croaker	Pseudotolithus senegallus
3.84999990463257	172	Silver scabbardfish	Lepidopus caudatus
3.84999990463257	90	Dusky grouper	Epinephelus marginatus
3.84349989891052	190	Groupers	Epinephelus
3.83999991416931	95	Cassava croaker	Pseudotolithus senegalensis
3.82999992370605	172	Wreckfish	Polyprion americanus
3.8199999332428	170	Southern meagre	Argyrosomus hololepidotus
3.80999994277954	39	Blackbelly rosefish	Helicolenus dactylopterus
3.80988097190857	27	Cephalopods	Cephalopoda
3.80666708946228	33	Bigeyes	Priacanthus
3.79999995231628	41	Bastard grunt	Pomadasys incisus
3.78999996185303	100	Croakers	Pseudotolithus
3.77125000953674	20	Lefteye flounders	Bothidae
3.76205897331238	200	Drums or croakers	Sciaenidae
3.73000001907349	70	Derbio	Trachinotus ovatus
3.72562503814697	111	Smooth-hounds	Mustelus
3.72000002861023	57	Slimeheads	Trachichthyidae
3.71000003814697	41	Congo dentex	Dentex congoensis
3.69749999046326	163	Guitarfishes	Rhinobatidae
3.6949999332428	66	Jack and horse mackerels	Trachurus
3.69000005722046	40	Oreos	Oreosomatidae
3.68666696548462	102	Pompanos	Trachinotus
3.67000007629395	85	Bonefish	Albula vulpes
3.65000009536743	115	Medusafishes	Centrolophidae
3.65000009536743	75	Common seabream	Pagrus pagrus
3.65000009536743	20	Striped red shrimp	Aristeus varidens
3.64666700363159	51	Mackerels	Scomber
3.64000010490417	62	Atlantic horse mackerel	Trachurus trachurus
3.6324999332428	37	Scads	Decapterus
3.61374998092651	205	Skates and rays	Rajiformes
3.60999989509583	33	Redbait	Emmelichthys nitidus nitidus
3.59999990463257	28	Cuttlefishes	Sepiidae
3.59999990463257	42	Red pandora	Pagellus bellottii
3.59999990463257	70	African threadfish	Alectis alexandrinus
3.59999990463257	49	False scad	Caranx rhonchus
3.58999991416931	148	Rainbow runner	Elagatis bipinnulata
3.57999992370605	68	Octopuses	Octopoda
3.57500004768372	25	Picarels	Spicara
3.57450008392334	25	Flyingfishes	Exocoetidae
3.57428574562073	30	Spadefishes and batfishes and scats	Ephippidae
3.57180309295654	50	Flatfishes	Pleuronectiformes
3.5699999332428	37	Lesser African threadfin	Galeoides decadactylus
3.55999994277954	29	Royal threadfin	Pentanemus quinquarius
3.55999994277954	26	Boe drum	Pteroscion peli
3.54999995231628	28	Common cuttlefish	Sepia officinalis
3.54999995231628	32	Common octopus	Octopus vulgaris
3.54749989509583	100	Seabreams (Pagrus spp)	Pagrus
3.53999996185303	41	Atlantic emperor	Lethrinus atlanticus
3.53143930435181	56	Perch-likes	Perciformes
3.51999998092651	29	Angola dentex	Dentex angolensis
3.51166701316834	35	Threadfin breams and Whiptail breams	Nemipteridae
3.5	102	Crevalle jack	Caranx hippos
3.49874997138977	43	Puffers	Tetraodontidae
3.49000000953674	80	Rubberlip grunt	Plectorhinchus mediterraneus
3.47857093811035	62	Sea catfishes	Ariidae
3.47000002861023	23	Armored searobins or armored gurnards	Peristediidae
3.47000002861023	16	Longspine snipefish	Macroramphosus scolopax
3.47000002861023	56	Cape horse mackerel	Trachurus capensis
3.45749998092651	55	Goatfishes	Mullidae
3.44000005722046	70	Pandoras	Pagellus
3.4300000667572	53	Large-eye dentex	Dentex macrophthalmus
3.41000008583069	75	Bearded brotula	Brotula barbata
3.38000011444092	45	Striped seabream	Lithognathus mormyrus
3.36999988555908	52	Canary drum	Umbrina canariensis
3.35863590240479	80	Grunts	Haemulidae
3.33999991416931	60	Black seabream	Spondyliosoma cantharus
3.32999992370605	49	Sompat grunt	Pomadasys jubelini
3.3199999332428	30	Wedge sole	Dicologlossa cuneata
3.3199999332428	49	Blue jack mackerel	Trachurus picturatus
3.30999994277954	4	Deepwater rose shrimp	Parapenaeus longirostris
3.30864906311035	164	Porgies	Sparidae
3.29999995231628	33	Cunene horse mackerel	Trachurus trecae
3.28999996185303	30	Tonguefishes	Cynoglossidae
3.28500008583069	40	Western goatfishes	Mullus
3.25999999046326	57	Gilthead seabream	Sparus aurata
3.25250005722046	53	Triggerfishes	Balistidae
3.24000000953674	25	Herrings	Clupeiformes
3.24000000953674	55	West African goatfish	Pseudupeneus prayensis
3.22000002861023	87	Remoras	Echeneidae
3.21000003814697	53	Atlantic bumper	Chloroscombrus chrysurus
3.21000003814697	25	Round sardinella	Sardinella aurita
3.20000004768372	35	Madeiran sardinella	Sardinella maderensis
3.19000005722046	20	West African ilisha	Ilisha africana
3.17000007629395	70	Common sole	Solea solea
3.1589469909668	28	Herrings and shads and sardines and menhadens	Clupeidae
3.15166711807251	25	Soles	Soleidae
3.13666677474976	11	Palaemonid shrimps	Palaemonidae
3.10999989509583	20	European anchovy	Engraulis encrasicolus
3.08999991416931	52	Chub mackerel	Scomber japonicus
3.06162858009338	11	Gastropods	Gastropoda
3.04500007629395	45	Halfbeaks	Hemiramphus
3.02999997138977	25	Bigeye grunt	Brachydeuterus auritus
3	25	Crustaceans	Crustacea
3	30	Bogue	Boops boops
2.97199988365173	49	Seabreams and porgies	Diplodus
2.8733332157135	20	Slipper lobsters	Scyllaridae
2.76699995994568	21	Sardinella	Sardinella
2.70000004768372	50	Spiny lobsters	Palinurus
2.70000004768372	34	Penaeus shrimps	Penaeus
2.70000004768372	13	Caramote prawn	Melicertus kerathurus
2.70000004768372	17	Guinea shrimp	Parapenaeopsis atlantica
2.70000004768372	19	Southern pink shrimp	Farfantepenaeus notialis
2.65000009536743	13	Natantian decapods	Shrimps and prawns
2.59999990463257	44	Lobsters and spiny-rock lobsters	Homaridae and Palinuridae
2.59999990463257	30	Marine crabs	Brachyura
2.59999990463257	18	Deepsea crabs	Geryon
2.59999990463257	40	Tropical spiny lobsters	Panulirus
2.52500009536743	120	Mullets	Mugilidae
2.5	35	Bonga shad	Ethmalosa fimbriata
2.29999995231628	33	Scarlet shrimp	Plesiopenaeus edwardsianus
2.27900004386902	45	Surgeonfishes and tangs and unicornfishes	Acanthuridae
2.26999998092651	15	Clams cockles and arkshells	Clams or cockles and arkshells
2.09999990463257	10	Common edible cockle	Cardium edule
2	25	Cupped oysters	Crassostrea
2	15	Murex shells	Murex
2	5	Gondolas	Cymbium

FiB index inputs
Reference year: Transfer efficiency:

Method